Hi all,
While working through the first bits of the HtDP2e book, in DrRacket 6.9 on
Mac, I get the following error whenever I try to run any program in the
"Definitions" window that contains (require 2htdp/universe):
link: bad variable linkage;
reference to a variable that is not a procedure o
Onno,
That happens when the .zo files produced by plain command-line racket conflict
with ones that come from DrRacket. Or the other way around, I am not sure. Or
something else related to .zo files that are no longer valid for some reason.
Anyway, try removing the 'compiled' directories from y
How did you install Racket? Via the Mac installer from ‘download’?
[This error happens when you had an older installation and the new one doesn’t
re-compile the byte code files.]
> On May 13, 2017, at 5:19 PM, onn...@gmail.com wrote:
>
> Hi all,
>
> While working through the first bits of
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